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The study of electron motion in semiconductor billiards has elucidated our understanding of quantum interference and quantum chaos. The central assumption is that ionized donors generate only minor perturbations to the electron…

Recent investigations of fractal conductance fluctuations (FCF) in electron billiards reveal crucial discrepancies between experimental behavior and the semiclassical Landauer-Buttiker (SLB) theory that predicted their existence. In…

We study the effects of disorder on the interlayer transport properties of disordered semiconductor bilayers outside of the quantum Hall regime by performing self-consistent quantum transport calculations. We find that the addition of…

介观与纳米尺度物理 · 物理学 2015-06-04 Youngseok Kim , Brian Dellabetta , Matthew J. Gilbert

The coupling of orbital and spin degrees of freedom is the source of many interesting phenomena. Here, we study the electron dynamics in a quantum billiard --a mesoscopic rectangular quantum dot-- with spin-orbit coupling driven by a…

介观与纳米尺度物理 · 物理学 2013-11-13 D. V. Khomitsky , A. I. Malyshev , E. Ya. Sherman , M. Di Ventra

We consider the problem of electron transport across a quasi-one-dimensional disordered multiply-scattering medium, and study the statistical properties of the electron density inside the system. In the physical setup that we contemplate,…

无序系统与神经网络 · 物理学 2020-01-29 Pier A. Mello , Miztli Yépez

We analyze the transport properties of a semiconductor based bilayer system under non-equilibrium conditions with special emphasis on the charge transfer statistics in the regime dominated by the exciton transport. We consider two different…

介观与纳米尺度物理 · 物理学 2013-08-06 H. Soller , A. Komnik

We report on the experimental investigation of the properties of the eigenvalues and wavefunctions and the fluctuation properties of the scattering matrix of closed and open billiards, respectively, of which the classical dynamics undergoes…

量子物理 · 物理学 2019-10-07 Runzu Zhang , Weihua Zhang , Barbara Dietz , Chai Guozhi , Liang Huang

We study the quantum-interference effect in the ballistic Aharonov-Bohm (AB) billiard. The wave-number averaged conductance and the correlation function of the non-averaged conductance are calculated by use of semiclassical theory. Chaotic…

介观与纳米尺度物理 · 物理学 2007-05-23 Shiro Kawabata

We perform a detailed numerical study of energy-level and wavefunction statistics of a deformable quantum billiard focusing on properties relevant to semiconductor quantum dots. We consider the family of Robnik billiards generated by simple…

凝聚态物理 · 物理学 2009-10-22 Henrik Bruus , A. D. Stone

Billiards tables - a minimal model for particles moving in a confined region - are known to present classical (and quantum) different features according to their shape, ranging from strongly chaotic to integrable dynamics. Here we consider…

混沌动力学 · 物理学 2026-05-13 Roberto Artuso , Matteo Burlo

Streamlines and distributions of nodal points are used as signatures of chaos in coherent electron transport through three types of billiards, Sinai, Bunimovich and rectangular. Numerical averaged distribution functions of nearest distances…

We present experimental studies of the geometry-specific quantum scattering in microwave billiards of a given shape. We perform full quantum mechanical scattering calculations and find an excellent agreement with the experimental results.…

介观与纳米尺度物理 · 物理学 2009-11-07 T. Blomquist , H. Schanze , I. V. Zozoulenko , H. -J. Stockmann

The semiclassical theory for billiards with mixed boundary conditions is developed and explicit expressions for the smooth and the oscillatory parts of the spectral density are derived. The parametric dependence of the spectrum on the…

chao-dyn · 物理学 2009-10-28 Martin Sieber , Harel Primack , Uzy Smilansky , Iddo Ussishkin , Holger Schanz

We study the motion of electrons in a single miniband of a semiconductor superlattice driven by THz electric field polarized along the growth direction. We work in the semiclassical balance-equation model, including different elastic and…

介观与纳米尺度物理 · 物理学 2009-11-07 Kirill N. Alekseev , Ethan H. Cannon , Jonathan C. McKinney , Feodor V. Kusmartsev , David K. Campbell

We report on transport characteristics of quantum dot devices etched entirely in graphene. At large sizes, they behave as conventional single-electron transistors, exhibiting periodic Coulomb blockade peaks. For quantum dots smaller than…

介观与纳米尺度物理 · 物理学 2008-04-18 L. A. Ponomarenko , F. Schedin , M. I. Katsnelson , R. Yang , E. H. Hill , K. S. Novoselov , A. K. Geim

The impression gained from the literature published to date is that the spectrum of the stadium billiard can be adequately described, semiclassically, by the Gutzwiller periodic orbit trace formula together with a modified treatment of the…

chao-dyn · 物理学 2009-10-28 Gregor Tanner

In generic Hamiltonian systems with a mixed phase space chaotic transport may be directed and ballistic rather than diffusive. We investigate one particular model showing this behaviour, namely a spatially periodic billiard chain in which…

混沌动力学 · 物理学 2009-11-11 Holger Schanz , Manamohan Prusty

Generic one-parameter billiards are studied both classically and quantally. The classical dynamics for the billiards makes a transition from regular to fully chaotic motion through intermediary soft chaotic system. The energy spectra of the…

chao-dyn · 物理学 2007-05-23 Sunghwan Rim , Soo-Young Lee , Eui-Soon Yim , C. H. Lee

The geometry of a billiard boundary fundamentally governs its dynamics, ranging from integrable to mixed and fully chaotic regimes. Bean- and peanut-shaped billiards have varying curvature with both focusing and defocusing walls without a…

混沌动力学 · 物理学 2026-05-07 Pranaya Pratik Das , Tanmayee Patra , Biplab Ganguli

We study the low energy quantum spectra of two-dimensional rectangular billiards with a small but finite-size scatterer inside. We start by examining the spectral properties of billiards with a single pointlike scatterer. The problem is…

chao-dyn · 物理学 2009-10-28 T. Shigehara , Taksu Cheon
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